Twisting-machine



(No Model.)

A.B.BULLOOK. TWISTING MACHINE.

Patented; Apr. 14, 1891.

g a WITH c5555. LVENj- R UNrrnn STATES PATENT OFFI E.

ALANSON B. BULLOCK, OF CANTON, MASSACHUSETTS.

QTWISTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 450,137, dated April 14, 1891.

Application filed April 30, 1890. Serial No. 349,996. (No model.)

T0 at whom it may concern:

Be it known that I, ALANSON B. BULLOCK,

of Canton, in the county of Norfolk and State of Massachusetts, have invented a new and useful Improvement in Twisting-Machines, of which the following is a specification.

This invention relates to twistin gmachines for twisting and laying cordage, &c., and particularly to certain improvements in the twisting-frame or bobbin-frame, said improvements being fully described below, and illustrated in the accompanying drawings, in which Figure 1 is a part elevation and part vertical section of a twisting-frame embodying my invention. Fig. 2 is an enlarged vertical section of a portion of the same. Fig. 3 is an enlarged plan of the twisting-frame. Fig. 4 is a horizontal section on line 00 00, Fig. 1. Fig. 5 is a horizontal section on line y, Fig. 1.

Similar letters of reference indicate like parts.

A represents a vertical driving-shaft, supported in the step a and by the portions a and a of the machine, the remainder of which, being constructed as usual, is not illustrated in the drawings. Rigidly secured to this shaft are the driving-pulley b and the lower and upper plates or disks B and C.

D D are hollow fliers-say three in numberhaving their bearings in the upper plate 0 and in steps 13' in the lower plate B and being provided with cones (1, around which a stationary band 6 is drawn, the ends e or straps extending from said band (see Fig. 5) being secured to the stationary portion of the machine. In this contrivance, which is not new in this invention, the endless band 6 passes around the outer sides of the three pulleys d. One or more straps 6' (two being preferred) are tied or secured in any manner to the band 6 and have their outer ends secured to some stationary portion of the machine. Thus the stationary band 6 causes the pulleys d to rotate on their axes as they revolve around the axis of the shaft A. Each of these fliers D is provided with, say, six disks E, centrally perforated to receive a solid spindle F, which is dropped into the flier through said perforations and into a suitable opening in the solid portion D of the lower end of the flier.

(See Figs. 1 and 2.) These disks E support the bobbins or spools H, which are held in place by the solid spindles F, as shown.

Formed in the flier opposite each spool and on alternately-opposite sides on said spool is an opening I, by means of which the spools are introduced to their resting-places on the disks E.

In the walls of the fliers D, behind the spools, perforations J, Fig. 2, are formed, by

means of which the spools may be reached and pushed out, if desired, after withdrawing the spindles F. The strands pass from the spools through suitable openings K in the fliers up over and under the screws or pins L and through the perforations or passages N in the upper ends of said fliers and through the vertical passages P in the upper end of the shaft A.

Rotary motion being applied to the shaft A by means of the pulley b, the stationary band 6 causes the fliers D torotate in the opposite direction, and the strands from the spools or bobbins are twisted into cords in the manner illustrated.

The speed of the revolutions of the fliers may be varied as desired by means of the stepped pulleys d.

In order to prevent the spindles spreading by centrifugal force, pulleys B may be centrally applied thereto, around which a suitable band 0" may be placed.

By means of this arrangement of bobbins or spools placed above each other on disks within hollow fliers and upon solid spindles there is less throw, and hence the twistingframe can be run at a higher speed.

By substituting for the ordinary flier (which is made with arms or rods) my tubular spindle D, I obtain great rigidity, as a tubular spindle is strong and rigid enough to run at a high velocity.

I do not limit myself to the numberof fliers shown, nor to the number of bobbins or spools mentioned in said fliers.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The hollow spindle or flier D, provided with the disks E for supporting the bobbins H in a vertical line, and the openings I next said bobbins and formed alternately on opposite sides of the flier, substantially as described.

2. In atwisting-machine, the spindle D, constructed in the shape of a tube and provided with the openings I in the walls thereof next the bobbins and with the disks E for supporting said bobbins, whereby sufficient strength and rigidity are obtained .to enable the spindle to run at a high velocity, substantially as set forth.

3. In combination, the vertical shaft A, provided with the perforations P, the disks B O, rigidly secured thereon, the tubular fiiers D, made solid at their upper ends and having such solid upper ends provided with the passages N and provided with the tension screws or pins L, said fliers being further provided with the shelves E in vertical line for the support of the bobbins, the solid spindles F, ex-

ALANSON l3. BULLOCK.

Witnesses:

HENRY W. WILLIAMS, J. MHARTNETT. 

